Method of removing the pistons from piston engines



lylltllliillilllrlnn V. REMBOLD METHOD OF REMOVING THE PISTONS FROM PISTON ENGINES Filed Sept. 22.

Patented Get. 2, 1923.

s res vIK'ron REMBOLD, or K1121, GERMANY.

METHOD REMOVING THE EISTONS FROM PISTON ENGINES. l

Application filed September 22, 1921. Srial' no. 502,536.

T0 aZZ whom it may concern- Be it known that I, VIKTOR R EMBOLD, a citizen of the German Republic, residing at Kiel, in the German Republic, have invent ed new and useful Improvements in Methods of Removing the Pistons from Pistonpiston from the engine-cylinder from the rear of the latter. To carry this out, itis necessary to first remove the valves, operating levers and shaft in connection therewith, exhaust conduit and air pipe or scavengingv pipe, a portion of the refrigerating conduit, the admission and, in Diesel motors, the fuel supply pipe, injection pipe and the cylinder cover. Further, it is necessary to discharge the water from the cylinder cover, from the exhaust pipe and the refrigerated valves before the aforesaid parts and the piston can be removed.

In certain known constructions, however, the piston can be removed through the front end of the cylinder, for which purpose special lifting mechanism and tools are provided, or some parts of the cylinder stuffing box have to be "removed. 1

I overcome the foregoing objections by the meanshereinafter described with reference to the annexed drawings and pointed out in the. appended claims.

In these drawings Figures 1 and 2 are vertical sections through the cylinder of a Diesel engine. certain connected parts being shown in elevw tion. 7 e

For my purpose I provide the piston a, with a piston rod made in two parts b and 0. The piston is advanced to ab'out its outward dead centre, as shown in Fig. 1 and the connections between the piston a and piston rod at b as also between 6 and I 0 are released, while the piston is temporarily sustained by means of a prop 03. :The

(see Fig. 1) and the remaining portion 0 portion 6 of the piston rod is now removed I of the piston rod is moved up to support the piston a. As the flanges for connecting the parts a and b and Z) and orespectively are made exactly alike," it will be easy to fix" v the flange of part 0 to the piston al The piston can then be withdrawn from the cylinder by turning the engine-gear l and be deposited on a frameas shown in Fig. 2. After its disconnection from the part-0 of the piston rod, the piston can be pulled along on said frame. tion 01 the piston thework is carried out in inverse manner.

With reference to the figures ot' the"? For the reintroducpiston support the piston, then removing the tem-' porary support and lowering the remain ing portion of the piston rod for withdrawingthe piston from the cylinder.

VIKTOR REMBOLD. 

